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在处理热轴承事故现场中如何判断润滑脂是否变质？

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失火罪是指行为人过失引起火灾，造成致人重伤、死亡或者使公私财产遭受重大损失的严重后果，危害公共安全的行为。（）（易）

A. 正确
B. 错误

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兰目是单子叶植物中适应昆虫传粉的最高级类群，常见物种在特征上主要表现为有一片花瓣特化为（），雌雄蕊结合为（），花粉形成（）。

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A new switch is installed in the Testking network. This switch is to be configured sothat VLAN information will be automatically distributed to all the other Cisco Catalyst switches in the network. Which of the conditions below have to be met in order for this to occur?（）

A. The switch that will share the VLAN information must be in the VTP Server mode.
B. The switches must be in the same VTP domain.
C. The switch that will share the VLAN information must be configured as the root bridge.
D. The switches must be configured to use the same VTP version.
E. The switches must be configured to use the same STP version.
F. The switches must be configured to use the same type of ID tagging.
G. The switches must be connected over VLAN trunks.

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汽轮机故障停机一般分为：（）和（）。

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